Biotechnology K-12 Experiments
Biotechnology vs. Genetic Engineering
When Hungarian engineer Karl Ereky coined the word biotechnology in 1919 to describe the production of goods from raw materials with the aid of living organisms, he was describing techniques that had been employed by human beings for centuries. This includes techniques such as selective breeding, fermentation, hybridization, phyto-pharmacology, vaccination or the use of biomass for energy production.
However, the term biotechnology has evolved to include modern techniques with new applications, to what is now known as modern biotechnology. Modern biotechnology encompasses techniques such as genetic engineering (which is the direct intervention on the genetic makeup of an organisms usually by introducing foreign DNA into its gene pool by means that would not occur naturally), tissue culture and others. These modern techniques also take considerably less time to achieve the desirable changes in living organisms and carry greater precision than traditional techniques.
In short, genetic engineering is a specific subset as a part of the more general subject of biotechnology.
Biotechnology
About Biotechnology
Environmentally-Related Technologies
Food Biotechnology
Health Biotechnology
Industrial Biotechnology
Natural Resources
Sustainable Development
Biotechnology
Biotechnology is a technology based on biology, especially when used in agriculture, food science, and medicine.
Of the many different definitions available, the one formulated by the UN Convention on Biological Diversity is one of the broadest:
- "Biotechnology means any technological application that uses
biological systems, living organisms, or derivatives thereof, to make
or modify products or processes for specific use." (Article 2. Use of
Terms)
Biotechnology can also be defined with: "Biotechnology is the manipulation of organisms to do practical things and to provide useful products."
One section of biotechnology is the directed use of organisms for the manufacture of organic products (examples include beer, milk products, and skin). Naturally present bacteria are utilized by the mining industry in bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites contaminated by industrial activities (bioremediation), and produce biological weapons.
There are also applications of biotechnology that do not use living organisms. Examples are DNA microarrays used in genetics and radioactive tracers used in medicine.
Modern biotechnology is often associated with the use of genetically altered microorganisms such as E. coli or yeast for the production of substances like insulin or antibiotics. It can also refer to transgenic animals or transgenic plants, such as Bt corn. Genetically altered mammalian cells, such as Chinese Hamster
Ovarian (CHO) cells, are also widely used to manufacture
pharmaceuticals. Another promising new biotechnology application is the
development of plant-made pharmaceuticals.
Biotechnology is also commonly associated with breakthroughs in new medical therapies and diagnostic devices.
Sub-fields of biotechnology
There are a number of jargon terms for sub-fields of biotechnology.
Red biotechnology is biotechnology applied to medical processes. Some examples are the designing of organisms to produce antibiotics, and the engineering of genetic cures to cure diseases through genomic manipulation.
White biotechnology, also known as grey biotechnology, is biotechnology applied to industrial
processes. An example is the designing of an organism to produce a
useful chemical. White biotechnology tends to consume less in resources
than traditional processes when used to produce industrial goods.
Green biotechnology is biotechnology applied to agricultural
processes. An example is the designing of an organism to grow under
specific environmental conditions or in the presence (or absence) of
certain agricultural chemicals. One hope is that green biotechnology
might produce more environmentally friendly solutions than traditional
industrial agriculture. An example of this is the engineering of a
plant to express a pesticide, thereby eliminating the need for external application of pesticides. An example of this would be Bt corn.
Whether or not green biotechnology products such as this are ultimately
more environmentally friendly is a topic of considerable debate.
Bioinformatics
is an interdisciplinary field which addresses biological problems using
computational techniques. The field is also often referred to as
computational biology. It plays a key role in various areas like
functional genomics, structural genomics, and proteomics amongst
others, and forms a key component in biotechnology and pharmaceutical
sector.
The term blue biotechnology has also been used to describe the marine and aquatic applications of biotechnology, but its use is relatively rare.
Biotechnology timeline
- 8000 BCE Collecting of seeds for replanting. Evidence that Mesopotamian people used selective breeding (artificial selection) practices to improve livestock.
- 6000 BCE Brewing beer, fermenting wine, baking bread with help of yeast
- 4000 BCE Chinese made yogurt and cheese with lactic-acid-producing bacteria
- 1500 CE Plant collecting around the world
- 1590 CE The microscope is invented by Zacharias Janssen.
- 1675 CE Microorganisms discovered (using first microscope)
- 1857 CE Gregor Mendel discovered the laws of inheritance
- 1919 CE Karl Ereky, a Hungarian agricultural engineer, first used the word biotechnology
- 1953 CE James D. Watson and Francis Crick describe the structure of DNA
- 1972 CE The DNA composition of humans is discovered to be 99% similar to that of chimpanzees and gorillas.
- 1975 CE Method for producing monoclonal antibody developed by Kohler and Milstein
- 1980 CE Modern biotech is characterized by recombinant DNA technology. The prokaryote model, E. coli, is used to produce insulin and other medicine, in human form. (About 5% of diabetics are allergic to animal insulins available before)
- 1980 CE A viable brewing yeast strain Saccharomyces cerevisiae 1026
acts a modifier of the microflora in the rumen of cows and digestive
tract of horses)
- 1984 CE Nutrigenomics as applied science in animal nutrition
- 1990 CE Adam Williams was the first test tube baby made from the embryo of a mouse
- 1994 CE FDA approves of the first GM food from Calgene: "Flavr Savr" tomato
- 1997 CE British scientists from the Roslin Institute report cloning a sheep called Dolly using DNA from two adult sheep cells. Ian Wilmut led the team that cloned Dolly.
- 2000 CE Completion of the Human genome Project
- 2002 CE Researchers sequence the DNA of rice, the main food source for two-thirds of the world's population. Rice is the first crop to have its genome decoded.
- 2003 CE GloFish,
the first biotech pet, hits the North American market. Specially bred
to detect water pollutants, the fish glows red under black light thanks
to the addition of a natural bioluminescence gene.
- 2006 CE Scientists in Asia implant the DNA of a jellyfish into a pig embryo, creating the first bioluminescent pig.
Biotechnology firms
The top 10 publicly-traded biotechnology companies, ranked by 2008 sales, are:
- Amgen
- Genentech
- Serono
- Biogen Idec
- Chiron Corporation
- Genzyme
- MedImmune
- Pfizer
- Millennium Pharmaceuticals
- Applied Biosystems
Key visionaries and personalities in biotechnology sector
Finland : Leena Palotie
Iceland : Kari Stefansson
Ireland : Dr. Thomas Peasre Lyons...
USA :Kate Jacques, David Botstein, Craig Venter, Sydney Brenner, Eric Lander, Leroy Hood, Robert Langer, Henry I. Miller, Roger Beachy, William Rutter, George Rathmann, Robert Swanson, Michael West, Thomas Okarma...
Europe :Paul D Kemp...
- Soren Demin-Inst. of Biotechnology-Cambridge University
India :Kiran Mazumdar-Shaw (Biocon)
See also
Compare with
External links
This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia Encyclopedia article "Biotechnology"
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